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The NuSTAR Serendipitous Survey: The 40 month Catalog and the Properties of the Distant High Energy X-ray Source Population
G. B. Lansbury, D. Stern, J. Aird +35
We present the first full catalog and science results for the NuSTAR serendipitous survey. The catalog incorporates data taken during the first 40 months of NuSTAR operation, which…
Discovery of coherent pulsations from the Ultraluminous X-ray Source NGC 7793 P13
F. Fuerst, D. J. Walton, F. A. Harrison +12
We report the detection of coherent pulsations from the ultraluminous X-ray source NGC 7793 P13. The ~0.42s nearly sinusoidal pulsations were initially discovered in broadband X-ra…
Spectral Changes in the Hyperluminous Pulsar in NGC 5907 as a Function of Super-Orbital Phase
F. Fuerst, D. J. Walton, D. Stern +5
We present broad-band, multi-epoch X-ray spectroscopy of the pulsating ultra-luminous X-ray source (ULX) in NGC 5907. Simultaneous XMM-Newton and NuSTAR data from 2014 are best des…
NuSTAR observations of WISE J1036+0449, a Galaxy at z obscured by hot dust
C. Ricci, R. J. Assef, D. Stern +34
Hot, Dust-Obscured Galaxies (Hot DOGs), selected from the WISE all sky infrared survey, host some of the most powerful Active Galactic Nuclei (AGN) known, and might represent an im…
Living on a Flare: Relativistic Reflection in V404 Cyg Observed by NuSTAR During its Summer 2015 Outburst
D. J. Walton, K. Mooley, A. L. King +19
We present first results from a series of observations of the black hole X-ray binary V404 Cyg obtained during its summer 2015 outburst, primarily focusing on observations…
The Phoenix galaxy as seen by NuSTAR
A. Masini, A. Comastri, S. Puccetti +18
Aims. We study the long-term variability of the well-known Seyfert 2 galaxy Mrk 1210 (a.k.a. UGC 4203, or the Phoenix galaxy). Methods. The source was observed by many X-ray facili…
A 78 Day X-ray Period Detected from NGC 5907 ULX1 by Swift
D. J. Walton, F. Fuerst, M. Bachetti +12
We report the detection of a day period in the X-ray lightcurve of the extreme ultraluminous X-ray source NGC 5907 ULX1 ( erg s$^{-1…
A broadband X-ray spectral study of the intermediate-mass black hole candidate M82 X-1 with NuSTAR, Chandra and Swift
Murray Brightman, Fiona A. Harrison, Didier Barret +8
M82 X-1 is one of the brightest ultraluminous X-ray sources (ULXs) known, which, assuming Eddington-limited accretion and other considerations, makes it one of the best intermediat…
An Iron K Component to the Ultrafast Outflow in NGC 1313 X-1
D. J. Walton, M. J. Middleton, C. Pinto +8
We present the detection of an absorpton feature at keV in the combined X-ray spectrum of the ultraluminous X-ray source NGC 1313 X-1 observed with XMM-New…
A growth-rate indicator for Compton-thick active galactic nuclei
M. Brightman, A. Masini, D. R. Ballantyne +10
Due to their heavily obscured central engines, the growth rate of Compton-thick (CT) active galactic nuclei (AGN) is difficult to measure. A statistically significant correlation b…
The weak neutral Fe fluorescence line and long-term X-ray evolution of the Compton-thick AGN in NGC 7674
P. Gandhi, A. Annuar, G. B. Lansbury +26
We present X-ray observations of the active galactic nucleus (AGN) in NGC 7674. The source shows a flat X-ray spectrum, suggesting that it is obscured by Compton-thick gas…
Spectro-timing study of GX 339-4 in a hard intermediate state
F. Fuerst, V. Grinberg, J. A. Tomsick +16
We present an analysis of NuSTAR observations of a hard intermediate state of the transient black hole GX 339-4 taken in January 2015. As the source softened significantly over the…
NuSTAR observations of water megamaser AGN
A. Masini, A. Comastri, M. Baloković +18
Aims. Study the connection between the masing disk and obscuring torus in Seyfert 2 galaxies. Methods. We present a uniform X-ray spectral analysis of the high energy properties of…
Suzaku Confirms NGC~3660 is an Unabsorbed Seyfert 2
E. Rivers, M. Brightman, S. Bianchi +3
An enigmatic group of objects, unabsorbed Seyfert 2s may have intrinsically weak broad line regions, obscuration in the line of sight to the BLR but not to the X-ray corona, or so…